Pinnacle West Capital Corporation
US ˙ NYSE ˙ US7234841010

SecurityPNW / Pinnacle West Capital Corporation
InstitutionShell Asset Management Co
Latest Disclosed Ownership1,906 shares
Latest Disclosed Value $ 171
Shell Asset Management Co reports 54.69% decrease in ownership of PNW / Pinnacle West Capital Corporation

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 1,906 shares of Pinnacle West Capital Corporation (US:PNW) valued at $170,892 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 4,207 shares of Pinnacle West Capital Corporation. The current value of the position is $191,515 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-11-07 2025-09-30 13F PINNACLE WEST CAP COM 723484101 1,906 -2,301 -54.69 0 0.0172
2025-07-23 2025-06-30 13F PINNACLE WEST CAP COM 723484101 4,207 -662 -13.60 0 0.0130
2025-05-14 2025-03-31 13F PINNACLE WEST CAP COM 723484101 4,869 -198 -3.91 0 0.0220
2025-02-14 2024-12-31 13F PINNACLE WEST CAP COM 723484101 5,067 0 0.00 0 0.0188
2024-11-07 2024-09-30 13F PINNACLE WEST CAP COM 723484101 5,067 0 0.00 0 0.0198
2024-07-25 2024-03-31 13F PINNACLE WEST CAP COM 723484101 5,067 -451 -8.17 0 0.0176
2024-02-14 2023-12-31 13F PINNACLE WEST CAP COM 723484101 5,518 -1,677 -23.31 0 0.0183
2023-11-08 2023-09-30 13F PINNACLE WEST CAP COM 723484101 7,195 2,951 69.53 1 0.0219
2023-07-28 2023-06-30 13F PINNACLE WEST CAP COM 723484101 4,244 -25 -0.59 0 0.0136
2023-05-15 2023-03-31 13F PINNACLE WEST CAP COM 723484101 4,269 -15 -0.35 0 0.0140
2023-02-07 2022-12-31 13F PINNACLE WEST CAP COM 723484101 4,284 -840 -16.39 0 -100.00 0.0143
2022-11-14 2022-09-30 13F PINNACLE WEST CAP COM 723484101 5,124 -1,346 -20.80 331 -30.02 0.0129
2022-08-09 2022-06-30 13F PINNACLE WEST CAP COM 723484101 6,470 6,470 473 0.0140
2022-02-09 2021-12-31 13F PINNACLE WEST CAP COM 723484101 0 -593 -100.00 0 -100.00
2021-11-04 2021-09-30 13F PINNACLE WEST CAP COM 723484101 593 -543 -47.80 43 -53.76 0.0010
2021-08-12 2021-06-30 13F PINNACLE WEST CAP COM 723484101 1,136 -523 -31.53 93 -31.11 0.0018
2021-05-10 2021-03-31 13F PINNACLE WEST CAP COM 723484101 1,659 -2,117 -56.06 135 -55.30 0.0027
2021-02-16 2020-12-31 13F PINNACLE WEST CAP COM 723484101 3,776 -25,633 -87.16 302 -86.22 0.0062
2020-11-13 2020-09-30 13F PINNACLE WEST CAP COM 723484101 29,409 -2,267 -7.16 2,192 -5.60 0.0510
2020-08-10 2020-06-30 13F PINNACLE WEST CAP COM 723484101 31,676 -2,161 -6.39 2,322 -9.47 0.0580
2020-05-11 2020-03-31 13F PINNACLE WEST CAP COM 723484101 33,837 -928 -2.67 2,565 -17.95 0.0715
2020-02-13 2019-12-31 13F PINNACLE WEST CAP COM 723484101 34,765 -648 -1.83 3,126 -9.08 0.0673
2019-11-12 2019-09-30 13F PINNACLE WEST CAP COM 723484101 35,413 -2,040 -5.45 3,438 -2.44 0.0785
2019-08-12 2019-06-30 13F PINNACLE WEST CAP COM 723484101 37,453 -2,582 -6.45 3,524 -7.92 0.0780
2019-05-09 2019-03-31 13F PINNACLE WEST CAP COM 723484101 40,035 -10,623 -20.97 3,827 -11.33 0.0844
2019-02-13 2018-12-31 13F PINNACLE WEST CAP COM 723484101 50,658 2,900 6.07 4,316 14.15 0.1076
2018-11-13 2018-09-30 13F PINNACLE WEST CAP COM 723484101 47,758 2,852 6.35 3,781 4.51 0.0746
2018-08-10 2018-06-30 13F PINNACLE WEST CAP COM 723484101 44,906 0 0.00 3,618 0.98 0.0742
2018-05-14 2018-03-31 13F PINNACLE WEST CAP COM 723484101 44,906 0 0.00 3,583 -6.33 0.0713
2018-02-09 2017-12-31 13F PINNACLE WEST CAP COM 723484101 44,906 846 1.92 3,825 2.66 0.0759
2017-10-20 2017-09-30 13F/A-1 PINNACLE WEST CAP COM 723484101 44,060 -2,051 -4.45 3,726 -5.12 0.0829
2017-10-18 2017-09-30 13F PINNACLE WEST CAP COM 723484101 38,941 -7,170 2,128
2017-07-26 2017-06-30 13F PINNACLE WEST CAP COM 723484101 46,111 0 0.00 3,927 2.13 0.0975
2017-04-26 2017-03-31 13F PINNACLE WEST CAP COM 723484101 46,111 4,525 10.88 3,845 18.49 0.0981
2017-01-10 2016-12-31 13F PINNACLE WEST CAP COM 723484101 41,586 -2,049 -4.70 3,245 -2.14 0.0877
2016-10-28 2016-09-30 13F PINNACLE WEST CAP COM 723484101 43,635 7,920 22.18 3,316 14.54 0.0794
2016-07-25 2016-06-30 13F PINNACLE WEST CAP COM 723484101 35,715 -54 -0.15 2,895 7.82 0.0672
2016-05-11 2016-03-31 13F PINNACLE WEST CAP COM 723484101 35,769 372 1.05 2,685 17.66 0.0643
2016-02-05 2015-12-31 13F PINNACLE WEST CAP COM 723484101 35,397 -3,544 -9.10 2,282 7.24 0.0539
2015-10-13 2015-09-30 13F PINNACLE WEST CAP COM 723484101 38,941 11,846 43.72 2,128 38.09 0.0337
2015-07-30 2015-06-30 13F PINNACLE WEST CAP COM 723484101 27,095 -6,118 -18.42 1,541 -27.21 0.0308
2015-05-07 2015-03-31 13F PINNACLE WEST CAP COM 723484101 33,213 33,213 0.00 2,117 0.0369
2015-02-04 2014-12-31 13F PINNACLE WEST CAP COM 723484101 0 -38,941 -100.00 0 -100.00
2014-10-24 2014-09-30 13F PINNACLE WEST CAP COM 723484101 38,941 -4 -0.01 2,128 -5.55 0.0330
2014-08-08 2014-06-30 13F PINNACLE WEST CAP COM 723484101 38,945 3,179 8.89 2,253 15.24 0.0347
2014-05-07 2014-03-31 13F PINNACLE WEST CAP COM 723484101 35,766 0 0.00 1,955 3.28 0.0325
2014-02-03 2013-12-31 13F/A-1 PINNACLE WEST CAP COM 723484101 35,766 13,946 63.91 1,893 58.54 0.0322
2014-01-27 2013-12-31 13F PINNACLE WEST CAP COM 723484101 35,766 1,893
2013-10-28 2013-09-30 13F PINNACLE WEST CAP COM 723484101 21,820 -10,615 -32.73 1,194 -33.63 0.0219
2013-08-01 2013-06-30 13F PINNACLE WEST CAP COM 723484101 32,435 32,435 1,799 0.0342
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.